I think that very often we are so focus in analyzing internals, or specific behaviours/situations/anomalies that we tend to forget the simple things.

It happened to me that last week a couple of customers raise the same question:  "How ProxySQL manage the default schema, or the ones declared inside a FROM/JOIN?"
I was a bit surprise because I was given that for granted, and my first thought was, 'well read the documentation', but then I realize we do not have a clear section in the documentation about this.

Given that and also because I realize I had not done a full and extensive test on how the SCHEMA is actually managed.
I decide to do a simple set of tests and write down few lines.

This blog is to answer that very simple question:"How ProxySQL manage the default schema, or the ones declared inside a FROM/JOIN?"
The blog is split in two parts, part 1 …

This post is about simple usage of mysqlx module i.e X Plugin with latest Connector/Python DMR.
The version of Python Connector is 8.0.4.

Installing:

wget https://dev.mysql.com/get/Downloads/Connector-Python/mysql-connector-python-8.0.4-0.1.dmr.el7.x86_64.rpm
sudo yum install mysql-connector-python-8.0.4-0.1.dmr.el7.x86_64.rpm

Sample Python code:

# Connecting to MySQL and working with a Session
import mysqlx

# Connect to a dedicated MySQL server
session = mysqlx.get_session({
    'host': 'localhost',
    'port': 33060,
    'user': 'bakux',
    'password': 'Baku12345',
    'ssl-mode': mysqlx.SSLMode.DISABLED
})

schema = session.get_schema('generated_columns_test')

# Create 'my_collection' in schema
schema.create_collection('my_collection')

# Get 'my_collection' from schema
collection = schema.get_collection('my_collection')

assert(True == collection.exists_in_database())

# You can also add multiple documents at once …

Today i will show you how to add confirm box before delete item in php Its always necessary to confirm yes or no about that removing record If we confirm before delete records its safe to client that delete right records So in this post i will show you how to add confirmation popup of jquery a

Today i will show you how to add confirm box before delete item in php Its always necessary to confirm yes or no about that removing record If we confirm before delete records its safe to client that delete right records So in this post i will show you how to add confirmation popup of jquery a

While it was always technically possible to store JSON in MySQL database columns, it was never a particularly attractive option. JSON data is just text, so any string type of sufficient length will take it quite happily. However, getting your JSON into the database using this method is one thing, but getting it back out again in any useful format had to be the responsibility of your application.

All that changed in MySQL 5.7.8 with the introduction of a native JSON data type and a range of useful built-in functions that made JSON a first-class citizen of MySQL.

In this post, we'll have a look at some of the functions you can use to store JSON data. Later posts will cover retrieving and otherwise manipulating that data.

Imagine that we are an online retailer, selling a range of electronics equipment. We sell anything from top of the range TVs to toasters. Clearly all these items will have things in common: they will be …

Duration: 30 min

Level: Intermediate

In this tutorial we are going to install and experiment with Dynimize using MySQL running the Sysbench OLTP benchmark. We also play around with the Linux perf command, top and vmstat. This tutorial assumes that you have MySQL and the Linux perf tool installed, and that there are no other CPU intensive workloads on the system other than those being tested. In order for the Linux perf tool to report CPU event counts, this tutorial should be completed on either a bare metal Linux server, or if using a virtual machine guest then virtual PMU support must be enabled by the hypervisor.

The initial part of this tutorial is meant to illustrate how to determine if there is potential for Dynimize to speedup a mysql (or any other program) workload, by checking to …

I’ve had some questions from people using MySQL Cluster GPL and wanting to move to using MySQL Cluster Carrier Grade Edition, i.e., they want to use MySQL Cluster Manager, MCM, to make their lives much easier, in particular, upgrading (as well as config change ease and backup history).

All I want to do here is to share with you my personal experience on migrating what’s considered a ‘wild’ NDB Cluster to a MCM managed cluster. It’s just as simple to follow the manual chapter Importing a Cluster into MySQL Cluster Manager so at least you can see how I did it, and it might help someone.

[ If you’re not migrating but just looking for further information on NDB Cluster, and came across this post, please please PLEASE look at the …

Dear MySQL users,

MySQL Connector/Net 6.10.3 rc is the fourth release which supports
Scaffold-DbContext, that enables the creation of corresponding model
classes from an existing database that are compatible with Entity
Framework (EF) Core 1.1.

To download MySQL Connector/Net 6.10.3 rc, see the “Development
Releases” tab at http://dev.mysql.com/downloads/connector/net/

Changes in MySQL Connector/Net 6.10.3 (2017-08-18, Release
Candidate)

   Known limitation of this release:

   The use of the SSL protocol is restricted to TCP connections.
   Connections using Unix sockets, named pipes, and shared memory do not
   support SSL mode.

   Functionality Added or Changed

     * The following methods are available for use with EF Core
       in asynchronous command and connection …

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community.

Has a week passed already? Welcome back to the second column. A lot of time has been spent neck deep in getting speakers accepted and scheduled for Percona Live Open Source Database Conference Europe 2017 in Dublin, as well organizing the conference sponsors.

Percona Live Europe Dublin

At the time of writing, we are six weeks away from the conference, so a little over a month! Have you registered yet? …

Dear MySQL users,

MySQL Connector/Python 2.1.7 GA is a fifth GA version of 2.1 release series of the pure Python database driver for MySQL. It can be used for production environments.

MySQL Connector/Python version 2.1.7 GA is compatible with MySQL Server versions 5.5 and greater. Python 2.6 and greater as well as Python 3.4 and greater are supported. Python 2.4, 2.5, and 3.1, 3.2, 3.3 are not supported.

MySQL Connector/Python 2.1.7 is available for download from:

http://dev.mysql.com/downloads/connector/python/#downloads MySQL Connector/Python 2.1.7 (Commercial) will be available for download on the My Oracle Support (MOS) website. This release will be available on eDelivery (OSDC) in next month’s upload cycle.

The ChangeLog file included in the distribution contains a brief summary of changes in MySQL …